In the Linux kernel, the following vulnerability has been resolved:

thermal/drivers/tegra/soctherma: Switch to devm cooling device registration

Use devm thermal of cooling device register() to simplify resource management and avoid manual cleanup in error paths.

As a side effect this change has the benefit of solving an existing issue. Before, the function tegra soctherm remove() only called debugfs remove recursive() and never called thermal cooling device unregister() for any of the cooling devices registered here.

After the driver removal, the thermal framework's cdev list would still hold references to thermal cooling device objects whose devdata pointer (ts) pointed to memory already freed by the platform device's devm cleanup.

With this change, the cooling device is unregistered when the driver is removed, thus fixing the issue above.